DE8518730U1 - Instrument for cleaning tooth necks in the interdental spaces - Google Patents

Description

Instrument * ziir * jRe «i> ii | -u ·: · ^ '\ s> \ in den

The purpose of the instrument is to facilitate the cleaning of the tooth necks in the interdental spaces.

The state of the art is described by the following patents and utility models of class A61C 15oo (25o3 861, DE 342o 3oo Al, GM 7918 461, G 8411 oll.2, G 8422 045-7) The state of the art is characterized in that Special cleaning threads are offered for cleaning narrow interdental spaces, the cleaning principle of which is that the thread rubs off the dirt adhering to the neck of the tooth by moving it up and down.

The thread holder and thread tension are controlled by either the generated by human fingers or by mechanical devices. The mechanical devices essentially consist of a handle, to which a fork-shaped device is attached, on which the cleaning thread is held. The positioning of the, thread on The fork takes place through notches in the fork tips or through holes in the fork tips.

The continuous tension of the thread is generated either by the spring tension of the fork, by a tensioning device or by manual tensioning with a locking device (screw connection, conical pin). The continuous thread feed takes place from a thread dispenser housed in the handle.
These devices have the following disadvantages: a) Thread holding device

aa) The fork-shaped thread holding device is attached to the end of a substantially straight handle, the The fork axles run in the axial direction of the handle (like a meat fork). The thread runs perpendicular to the Axial direction of the handle.

Disadvantage: By placing the fork on the neighboring one

In the tooth, the thread can be difficult to lower down to the gum line.

ab) The fork-shaped pad holding device is at the end of an im essentially straight handle attached, with the fork ends perpendicular to the axial direction of the handle run (similar to the key bit) and the thread in the axial direction of the handle.

Slegffled Rahm Auberstrasse 12

6209 Hohensleln 4

Instrument, to.r .fteini'gutig V ₄ On, iZä'nnnecksen in the dental clinic

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Disadvantages With this arrangement there can only be spaces between the teeth into which one can see through the mirror image, i.e. "essentially only the Interdental spaces between the incisors. The interdental spaces between the posterior molars are inaccessible.

ac) The fork-shaped thread holding device is at the end of an im essential straight handle attached, the fork perpendicular to the axial direction of the handle

(like the soil loosening hoe with two tines) and the Thread perpendicular to the axial direction of the handle. Disadvantage: With this arrangement, the handle covers the

Look at the space between the teeth and the thread cannot

can be safely inserted into the space between the teeth, b) handle

The fork-shaped thread holding device is attached to the end of a substantially straight handle.

Disadvantage: The hand that encompasses the handle obscures the view

to the interdental space, especially with the Tainteren

Molars.
c) Thread tensioning device / thread clamping device

ca) The thread is tensioned by a rotary tensioning device and held in this tension by a locking device. Disadvantage: the thread clamping is too tedious, too cumbersome,

the mechanics are too fragile.

cb) The thread is tensioned by hand and either clamped by conical pins or clamped in circular narrow notches or clamped by thread compression so that the thread tension is maintained during cleaning. Disadvantage: The thread clamping is too cumbersome and tedious.

The new cleaning instrument has the shape and size of a toothbrush and is therefore not unfamiliar to the user. The cleaning principle by abrasion using a tensioned cleaning thread remains unchanged. '. . . .

The cleaning instrument consists of the following essential functional parts:

. Handle body with thread clamping device

. Thread holding device '. "

. Thread dispenser

The thread holding device (K) has the shape of a fork, with between the two. _; The fork ends of the · cleaning thread is tensioned. Dm dis l'ji-'n'f '"^' ¹ ' ''' ¹ '"^.'flgw'f tiei i Ti T.jrtin. £ rs "f n.fleti9 · m ■ -den Za.ViTH7.wi koVieirrgnim ■. '*'"'* to be able to observe the "Re.inigung'sf adeh. * / .. '.. "". · -, to be able to lower as deep as possible to the gums »,'Täi'e fork ends have been kinked. In order to position the cleaning thread at the deepest point and also in this position during cleaning to hold, the bores were provided so that they open into the fork tips (B) ·. · --.-.- _r . · - ■. The handle body (G ¹ ) "is" bent towards the thread holding device, ^ to observe the introduction of the thread into the interdental space unhindered, to be able to un ^, j ^ opening

• yarn guide device '(F), the iFadenklemmvorrichtung (Z + E + S + H) ■ and the Fadenspendeyorrxchtuhg (R) -. Integriert.-. _{1 lt} ■■! ■. ' ⁵ I f: v · '· • .The. Cleaning thread "Runs from the.-thread roll (R-)." Through "the · ' ^: outlet valve seat (A), through the. Thread clamping device (Z; + E + fffS) ,. ■ through the central guide hole (F) * · Through the "Gäbelspxtzen- 'bores (B) of the thread holding device (K) and back to the common thread clamping device (dashed line) · -ZuV threading.-des. The cleaning thread becomes the clamping sleeve. (H) from

Handle body (G) removed, ϊη in this state is the clamping gap (S) ; wide open, so that the threading laterally through the nip into the central thread guide hole (F) without any problems

- is feasible. If the hand-stretched yarn to be clamped, the clamping sleeve (H) with the thumb on the inclined _r plane (E) is to push the clamping tongue (Z), whereby the two yarn ends in the clamping gap (S), that is, · between clamping tongue ( Z) and grip body (G) are clamped. The "clamping remains until it

• is lifted again by pulling back the clamping sleeve with the thumb. If the cleaning thread between the fork ends of the thread holding device is used up, it can continue _{to be very economical}

-and quickly the.-next piece of thread into the working area y s ^ fy ^ n wv> w

Claims (4)

Protection claims 1) Instrument for cleaning tooth necks, characterized in that that this consists of four parts, namely the handle body (G) with thread holding device (K) and thread clamping tongue (Z), the clamping sleeve (H), the thread roll (R) and the end cap (D). All parts are made of plastic, the dimensions of the instrument correspond roughly to the dimensions in the drawing. 2) instrument for cleaning tooth necks according to claim 1, characterized in that characterized in that the thread holding device is in the form of a Handle fork, the axis of the fork handle is bent about 15 degrees with respect to the axis of the handle body and the axes of the fork ends are bent about 9o degrees from the axis of the handle body. 3) .Instrument for cleaning tooth necks according to claim 1, characterized characterized in that the fork ends of the thread holding device Contain passage subscriptions whose axes coincide with the axes of the Fork ends match. 4) instrument for cleaning tooth necks according to claim 1, characterized characterized in that the thread clamping tongue is resilient as, handle body is arranged and an inclined plane is attached to the tip of the tongue » «I IMl